]> ToastFreeware Gitweb - philipp/winterrodeln/mediawiki_extensions/wrmap.git/blobdiff - tools/austria_simplified.py
Rename script austria_simplified to simplify_country.
[philipp/winterrodeln/mediawiki_extensions/wrmap.git] / tools / austria_simplified.py
diff --git a/tools/austria_simplified.py b/tools/austria_simplified.py
deleted file mode 100644 (file)
index 6b3cdbc..0000000
+++ /dev/null
@@ -1,65 +0,0 @@
-import argparse
-from collections import OrderedDict
-import fiona
-import shapely.geometry
-from fiona.crs import CRS
-from fiona.transform import transform_geom
-from shapely.wkt import dumps
-
-# data from https://www.naturalearthdata.com/downloads/50m-cultural-vectors/
-ZIP_FILE = '/home/philipp/daten/GeoData/naturalearth/v5.1/ne_50m_admin_0_countries.zip'
-LAYER_NAME = 'ne_50m_admin_0_countries'
-COUNTRY_NAME = 'Austria'
-
-
-def load_austria():
-    with fiona.open(f'zip://{ZIP_FILE}', layer=LAYER_NAME) as src:
-        for feature in src:
-            properties = feature['properties']
-            if properties['NAME'] == COUNTRY_NAME:
-                return feature['geometry'], src.crs
-
-
-def simplify_inner(country, crs):
-    metric_crs = CRS.from_epsg(32632)  # Western Austria (UTM32)
-    country = transform_geom(crs, metric_crs, country)
-    country = shapely.geometry.shape(country)
-    country = country.buffer(-5000)
-    country = country.simplify(tolerance=5000)
-    country = shapely.geometry.mapping(country)
-    country = transform_geom(metric_crs, crs, country)
-    return country
-
-
-def save_country(country, crs, name, shapefile):
-    schema = {
-        'geometry': 'Polygon',
-        'properties': OrderedDict([('name', 'str')])
-    }
-    with fiona.open(shapefile, 'w', crs=crs, schema=schema, driver='Shapefile') as c:
-        feature = {
-            'geometry': country,
-            'properties': OrderedDict([('name', name)]),
-        }
-        c.write(feature)
-
-
-def print_wkt(country):
-    country = shapely.geometry.shape(country)
-    print(dumps(country, rounding_precision=3))
-
-
-def main(shapefile):
-    country, crs = load_austria()
-    simplified_country = simplify_inner(country, crs)
-    if shapefile:
-        save_country(simplified_country, crs, COUNTRY_NAME, shapefile)
-    print_wkt(simplified_country)
-
-
-if __name__ == '__main__':
-    parser = argparse.ArgumentParser(description='Creates a simplified version of Austria')
-    parser.add_argument('--shapefile', default='simplified_austria.shp',
-                        help='Write result to shape file with this name')
-    args = parser.parse_args()
-    main(args.shapefile)